The National Technical Assistance Center for Children’s Mental Health at Georgetown University (TA Center), in collaboration with the National Association of State Mental Health Program Directors, conducted an environmental scan to explore home- and community-based services provided by states for children, youth, and young adults with mental health conditions and their families. The scan assesses activities to implement the specific services and supports described in a joint informational bulletin released in 2013 by the federal Centers for Medicare and Medicaid Services (CMS) and the Substance Abuse and Mental Health Services Administration (SAMHSA).